:root{--bg: #16130f;--panel: #241d16;--ink: #ece2cf;--muted: #a89a82;--accent: #b98e4f;--good: #8fc08a;--line: #382d22}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:var(--bg);color:var(--ink);font:15px/1.4 Segoe UI,system-ui,sans-serif}#app,.patina{height:100%}.patina{display:flex;flex-direction:column;max-width:1100px;margin:0 auto;padding:12px;gap:10px}.bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.bar h1{margin:0;font-size:20px;letter-spacing:.5px;font-weight:600}.subject{color:var(--muted);font-size:13px}.subject em{color:var(--accent);font-style:italic}.readout{color:var(--accent);font-size:13px;font-style:italic}.readout.done{color:var(--good)}.spacer{flex:1}.tools{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.tools button{background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:13px;cursor:pointer}.tools button:hover{border-color:var(--accent)}.tray{flex:1;min-height:360px;border-radius:14px;overflow:hidden;box-shadow:inset 0 0 0 10px #2a2118,inset 0 0 0 12px #120e09,0 10px 30px #00000073;background:#120e09}#c{display:block;width:100%;height:100%;touch-action:none;cursor:crosshair}.hint{margin:0;text-align:center;color:var(--muted);font-size:12px}.hint b{color:var(--ink)}